By Gary M. White, MD
This young man's photodistributed EM was precipitated by a cold sore 7 days prior.
Phototoxic Drug Reaction, e.g. HCTZ
Photo-Induced Lupus, e.g., from omeprazole.
Polymorphous Light Eruption
Lupus Erythematosus, dermatomyositis (shown here) and other connective tissue diseases.
Chronic Actinic Dermatitis (Photosensitive atopic dermatitis)
Warts The presence of warts only on sun-exposed parts of the body is extremely uncommon and rarely reported [Indian J Dermatol 2016;61:440-2].
Chickenpox Rarely, chickenpox may occur in a photodistributed manner [An unusual photodistributed rash. Diagnosis: actinic varicella. Pediatr Dermatol. 2014 Sep-Oct.]
Erythema Multiforme, Photodistributed
Sweet's Syndrome. A 40-year-old woman with multiple red raised painful lesions over her body of 10 days duration. Lesions spread from forearms to arms and back of trunk during the progress of the disease. Indian J Dermatol 2014;59:186-9
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